Arch brick



y 16, 1929- J. T. ANTHONY 1,721,267

ARCH BRICK Filed Nov. 1927 latented July 16, 1929.

UNITED STATES 'FFECE.

JAMES T. ANTHONY, OF SOUTH ORANGE, NEW JERSEY, ASSIGNOR 'IO GENERAL RE- FRACTORIES COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

ARCH BRICK.

Application filed November 3,1927. Serial No. 230,811.

My invention relates to refractory arches for locomotives and particularly to a novel brick adapted for use at a particular point in the arch.

In locomotives of a certain type, the circulating tubes or so-called arch tubes, are by reason of the design, located at their support ends at a point comparatively close to the grate; in other words the throat sheet is shallow with the result that the firing clearance between the bottom of the arch and the top of the grates is inadequate.

Consequently the coal as it is thrown.

through the fire box door, strikes the arch, is deflected downward and forms a bank across the fire box at the throat sheet, leaving an intervening space between the throat sheet and the bank of coal which is not covered by fuel, and through which cold air enters; or if the coal is not banked up at the forward end of the grate, the space at that point, the space next to the throat sheet, becomes filled solid with coal which eventually burns out leaving a mass of cinders and ashes at that point, the removal of which is diflicult.

The brick illustrated herein is designed to obviate this difliculty. It is of the common form so far as the horizontally extending portion of the brick is concerned, but I have provided diagonally downwardly and forwardly extending marginal flanges suitably hollowed out or socketed to fit the tubes. \Vhen installed on the inclined arch tubes, the brick occupies a substantially horizontal plane, thus leaving a substantial clearance between the grate and the arch and avoiding the diiiiculties heretofore encountered.

The invention will be more readily understood by reference to the accompanying drawings, in which;

Fig. 1 is a longitudinal section through a locomotive fire box having an arch to which my improved bricks have been applied;

Fig. 2 is a side elevation of one of the middle bricks employed in the arch,

Fig. 3 is an end view thereof, and

Fig. 4 is a sectional view taken on sub stantially the line 44 of Fig. 1.

As shown in the drawings, the brick comprises a body portion 10 of generally arcuate form, the center portion of the brick being thicker than at its sides. At each be molded without difliculty and due to the design of the projecting parts, is not likely to be easily broken in handling.

Preferably the angle of inclination of the depending flanges and their tube supporting sockets will be such that the brick will the tubes are quite acutely inclined.

It is obvious that modiflcationsmay be made in the design here illustrated, and I do not wish to be limited except as indicated in the appended claims.

I claim:

1. In a locomotive fire box, the combination with the grate and throat sheet, of circulation tubes extending upward from the throat sheet and a'row of bricks extendin between the circulation tubes and positioned adjacent to the throat sheet, the tubes being inclined downwardly and forwardly at their point of engagement with the throat sheet, the bricks having depending side flanges of increasing depth forwardly and provided with tube engaging sockets extending parallel to the bottom edge of the flanges.

2. In a locomotive fire box, the combination of a throat sheet and circulation tubes, a row of bricks extending across the tire box adjacent to the throat sheet, the side margins of the bricks in said row being extended downwardly and of increasing depth forwardly, the lowermargins of the flanges being provided with tube-engaging sockets. a

3. The combination with downwardly and forwardly inclined arch tubes of arch bricks remain substantially horizontal, although for cooperation with said tubes, the sides I testimony whereof I have afiixed my signature. I p JAMES T. ANTHONY. 

